Greenheck Fan SS1, SE1 manual Belt Drive SBE/SBS, Using The Performance Table

Using The Performance Table

Shown below is a portion of a typical performance table used in this catalog. Performance data shown offers the best selections for each propeller type (“L” or “H”) relative to sound, RPM and static pressure.

Consider “L” type propellers first for most applications.

Many sidewall applications can be met with the “L” type propeller. When using the performance tables, look first at the “L” selections, because they offer the lowest speed and sound levels.

	Model Number	Motor	Fan	Max	*Sones				CFM / Static Pressure in Inches WG
		HP	RPM	BHP		0.00	0.10	0.125	0.15	0.20	0.25	0.30	0.375	0.50	0.625	0.75	1.00
	Level 1 Performance	Max RPM L - 1085				H - 1221		Max Motor Frame Size - 56						TS = RPM x 5.235
“L” type			705	0.17	11.6	3606	2836	2451							CFM values
low pressure	SBE/SBS-1L20-4	1/4	810	0.25	13.3	4143	3510	3325	3084
															shown in
propeller			861	0.30	14.3	4404	3795	3672	3455						black are the
			773	0.17	11.1	2904	2453	2293	2112	1596	924	676	304
“H” type															most efficient
	SBE/SBS-1H20-4	1/4	892	0.27	14.1	3351	2987	2873	2744	2436	2011	1409	886	348	selections.
high pressure			953	0.30	16.2	3581	3247	3148	3034	2769	2469	2002	1160	657	Values shown
															in gray are not
propeller			889	0.33	14.9	4547	3950	3830	3655	3067
	SBE/SBS-1L20-3	1/3													recommended.
			947	0.40	16.1	4844	4271	4156	4044	3648
	SBE/SBS-1H20-3	1/3	998	0.37	16.7	3750	3436	3342	3244	3006	2727	2398	1588	873	393
			1039	0.40	17.2	3904	3608	3517	3427	3212	2954	2676	2037	1064	603
	SBE/SBS-1L20-5	1/2	1021	0.50	17.0	5222	4675	4566	4461	4181	3747
			1085	0.60	17.9	5550	5021	4919	4817	4621	4269	3712
	SBE/SBS-1H20-5	1/2	1107	0.50	18.0	4159	3885	3805	3720	3534	3315	3065	2599	1368	935	502
			1221	0.60	20	4587	4339	4277	4203	4049	3873	3675	3333	2514	1456	1064

Shows level of construction based on fan RPM & motor frame size. See Performance Charts.

Note that each max.	Optimum selection	Optimum selection
BHP is cataloged at	range for the “L” type	range for the “H”
a 1.0 and 1.2 service	propeller.	type propeller.
factor. See page 13.

20 Belt Drive SBE/SBS

Model SBE for exhaust — Model SBS for supply

Model Number	Motor	Fan	Max	*Sones					CFM / Static Pressure in Inches WG
	HP	RPM	BHP			0.00	0.10	0.125	0.15	0.20	0.25	0.30	0.375	0.50		0.625	0.75	1.00
Level 1 Performance	Max RPM L - 1085				H - 1221			Max Motor Frame Size - 56						TS = RPM x 5.235
		705	0.17	11.6		3606	2836	2451							CFM values shown in
SBE/SBS-1L20-4	1/4	810	0.25	13.3		4143	3510	3325	3084						black are the most efficient
		861	0.30	14.3		4404	3795	3672	3455						selections. Values shown in
		773	0.17	11.1		2904	2453	2293	2112	1596	924	676	304		gray are not recommended.
SBE/SBS-1H20-4	1/4	892	0.27	14.1		3351	2987	2873	2744	2436	2011	1409	886	348
		953	0.30	16.2		3581	3247	3148	3034	2769	2469	2002	1160	657
SBE/SBS-1L20-3	1/3	889	0.33	14.9		4547	3950	3830	3655	3067
		947	0.40	16.1		4844	4271	4156	4044	3648
SBE/SBS-1H20-3	1/3	998	0.37	16.7		3750	3436	3342	3244	3006	2727	2398	1588	873		393
		1039	0.40	17.2		3904	3608	3517	3427	3212	2954	2676	2037	1064		603
SBE/SBS-1L20-5	1/2	1021	0.50	17.0		5222	4675	4566	4461	4181	3747
		1085	0.60	17.9		5550	5021	4919	4817	4621	4269	3712
SBE/SBS-1H20-5	1/2	1107	0.50	18.0		4159	3885	3805	3720	3534	3315	3065	2599	1368		935	502
		1221	0.60	20		4587	4339	4277	4203	4049	3873	3675	3333	2514		1456	1064
Level 2 Performance	Max RPM L - 1241				H - 1391			Max Motor Frame Size - 143T						TS = RPM x 5.235
SBE/SBS-2L20-5	1/2	1021	0.50	17.0		5222	4675	4566	4461	4181	3747
		1085	0.60	17.9		5550	5021	4919	4817	4621	4269	3712
SBE/SBS-2H20-5	1/2	1107	0.50	18.0		4159	3885	3805	3720	3534	3315	3065	2599	1368		935	502
		1221	0.60	20		4587	4339	4277	4203	4049	3873	3675	3333	2514		1456	1064
SBE/SBS-2L20-7	3/4	1168	0.75	20		5974	5466	5371	5275	5090	4861	4527
		1241	0.90	22		6348	5853	5764	5674	5496	5325	5053	4479
SBE/SBS-2H20-7	3/4	1262	0.75	21		4742	4501	4441	4375	4226	4065	3883	3562	2849		1635	1255	495
		1391	0.90	25		5226	5008	4954	4899	4774	4639	4493	4244	3741		3005	1886	1138

Performance certified is for Models SBE/SBS for installation type A: free inlet, free outlet. Power rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories). *Speed (RPM) shown is nominal. Performance is based on actual speed of test. The sound ratings shown are loudness values in fan sones at 5 ft (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values are for installation type A: free inlet hemispherical sone levels.

*Sones shown apply to the highest cataloged CFM in black type at each fan RPM. For selections at other CFM and static pressure points, refer to the CAPS computerized selection program.

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